Since around 2017–2018, the world has been living through a period of progressive erosion, or collapse, of international orders inherited from the past. With the election of Donald Trump and the rapid increase of US containment of Russia and China—which is both a consequence of this gradual erosion and also represents deep internal and international contradictions—this process entered its apogee.

The announcement of the US pullout from Syria was received with caution in Moscow. Besides the security and political challenges it may bring about, the Trump decision could mean the end of a practical, relatively constructive US-Russian approach to conflict at flashpoints.

The presidents of Russia, Turkey and Iran convened for their fourth summit on Syria in Russia’s southern resort city of Sochi on Feb. 14. Earlier leaders of the “guarantor countries” of the Astana process met in November 2017 in Sochi, in April 2018 in Ankara and in September 2018 in Tehran.

Anyone who has at least some idea about the theory of international relations should remember the oft-quoted formula put forward by the father of British geopolitics, Halford Mackinder: “Who rules the Heartland commands the World-Island; who rules the World-Island commands the world.”

Relations between the US and Russia are at their worst since the end of the Cold War, China and the US have tense relations, India and China are trying to stabilize relations after a period of acrimony. The major powers appear today to be like the unhappy families in Leo Tolstoy’s Anna Karenina: ‘Each unhappy family (major power in this case) is unhappy in its own way.’

Freedom of movement and freedom to choose a place of residence can be ranked among the category of freedoms which, as part of the Global Commons, have been restricted to varying degrees at the level of communities, states, and international associations.